1b, Springfields, Castleton, Cardiff, CF3 2LG
About 1b
1b is a four-bedroom detached house in Castleton, Cardiff, Cardiff (CF3 2LG). It has a recorded floor area of 170 m² (around 1830 sq ft), construction records dating it to 2003-2006 and council tax band H. The latest certificate (July 2019) shows a C (score 74). The rating has held steady at C across 2 certificates since April 2009. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Average. The recommended improvements would push it to B (score 83).
Across 2015–2020, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £634,000 is 26.8% above the 2020 sale price. Most recent transfer: March 2020 at £500,000.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Utility roomYes
- EnsuiteYes
- StudyYes
- FireplaceYes
Outside
- Private gardenYes
- DrivewayYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Wall insulation upgraded
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
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Planning history
1b has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£634,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.1% per year over 5 years.
£500,000
Growth on file: 4.1% per year over 5 years.
Sales timeline
20 March 2020Most recent
£500,000
+20.5%over 4 years3 August 2015
£415,000
Median price across the last 4 sales in CF3 2LG: £517,500 (2022–2001).
Versus other Springfields homes
On floor area, 1b runs well behind the street norm.
EPC Rating
74 (C)
Street avg 71 (C)
Floor Area
170 m²
Street avg 239 m²
CO₂ Emissions
4.4 t/year
Street avg 6.5 t/year
Habitable Rooms
7 rooms
Street avg 8 rooms
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Marshfield Primary School — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







